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Spray POR-15 inside frame?

Discussion in '1st Gen. Tacomas (1995-2004)' started by Gyrkin, Jun 12, 2019.

  1. Jun 13, 2019 at 9:59 AM
    #21
    DaveInDenver

    DaveInDenver Not Actually in Denver

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    I wash my truck periodically and it'll handle being sprayed but high pressure self washing will flush it off. It's not impermeable, which is why it needs to be reapplied periodically.
    For POR15, I don't think so. What you linked is what I use for Fluid Film. It's called an undercoat gun and it's designed to spray more viscous material. POR15 is thinned so you'd need a more traditional paint gun. I think thinned paint would just come out like you're spraying paint balls in big blobs, if it even develops pressure. It might just ooze out of the nozzle like what happens just before a spray can runs out of propellant.
     
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  2. Jun 13, 2019 at 10:24 AM
    #22
    Gyrkin

    Gyrkin [OP] Well-Known Member

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    That's what I was afraid of. Do they make a traditional paint gun with an extended flexible wand? Just trying to figure out a way to put a coat of POR-15 on the inside of my frame.
     
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  3. Jul 25, 2019 at 12:11 PM
    #23
    Gyrkin

    Gyrkin [OP] Well-Known Member

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    I went ahead and tried the fluid film spray gun with POR-15 in it, and it worked pretty good.
     
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  4. Jul 25, 2019 at 12:14 PM
    #24
    STAGE 2

    STAGE 2 Well-Known Member

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    This. It’s like a sponge. Fine for wood....not so much for vehicles.
     
  5. Jul 25, 2019 at 12:20 PM
    #25
    MagtechPA

    MagtechPA Thor

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    Very cool, thanks for the update!

    I've been very happy with Fluid Film and plan to do another application in October, before the snow flies. :pout:
     
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  6. Jul 25, 2019 at 7:51 PM
    #26
    1997tacomav6

    1997tacomav6 V6 5sp,RegCab,TRD Supercharger,2"pulley,meth, 670k

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    Is the 360° flexible extension wand re useable or does it plug up for the next year for use?
     
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  7. Jul 26, 2019 at 6:00 AM
    #27
    Gyrkin

    Gyrkin [OP] Well-Known Member

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    Did not clog. It does have a thin coating of POR-15 on the inside of it, but is otherwise clear.
     
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  8. Jul 26, 2019 at 6:53 AM
    #28
    Xbeaus

    Xbeaus Well-Known Member

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    I do the fluid film every season. It has always seemed to work very well. My pickup starting out in Wyoming and it's now in South Dakota. That mag water/brine shiz is nasty.
     
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  9. Jul 26, 2019 at 7:01 AM
    #29
    GQ7227

    GQ7227 mw survivor

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    do you just spray that inside and let it accumulate over time inside there? does it just evaporate and needs reapplied occasionally?
     
    Last edited: Jul 26, 2019
  10. Jul 26, 2019 at 9:17 AM
    #30
    Gyrkin

    Gyrkin [OP] Well-Known Member

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    I plan to do the fluid film every year too. I just wanted to do a one time POR-15 to halt what rust is already there. Seems to have coated it pretty good. I followed it up with black rust-oleum paint over top of the POR-15 on the outside of the frame. I'm going to wait until this fall to do the fluid film. Going to also fluid film my wife's 2016 4-runner. Those solutions they have started using on the roads are nasty. They call it "beet juice" and stuff like that to make is sound harmless, but it all has salt in it, and is all nasty.
     
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  11. Jul 26, 2019 at 9:44 AM
    #31
    GQ7227

    GQ7227 mw survivor

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    i wish i woulda had pics of these basic chloride icicles hanging out from my inner wheel wells this past winter, they were as long as those icicles you see hanging from gutters of houses not well insulated

    a bodyshop guy told me that POR-15 in his experience does not last long before it starts peeling and flaking?
     
  12. Jul 26, 2019 at 9:58 AM
    #32
    windsor

    windsor Just a guy

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    As someone who has used POR 15, i wouldnt. It requires a bit of prep to give it a surface to bite onto, or it will peel off. If you spray over moisture, it will hold the moisture and cause rust under it and that will cause a peel point.
    I have found their prep solution doesnt work well and can peel with a fingernail. Sandblasted surface is the best, had to use a grinder to get the paint off.
    I would wait for a very warm couple days and pressure wash the frame to get as much dirt out as possible. Park on an incline to try to reduce any pooling inside the frame and let it dry for the day.
    Get a schutz gun with a mist end with extension hose and a wax frame coating.

    Edit: yes, POR-15 is quite thin.
     
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  13. Jul 26, 2019 at 10:29 AM
    #33
    Xbeaus

    Xbeaus Well-Known Member

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    I do. It doesn't do it any harm. It's an oil based film. Goes on rather thin. I pressure wash the underside of my pickup when it's dirty so it theory it gets some of it out. It works wonder on old farming equipment as well. Sometimes I skip a season so "every season" isn't exactly right. Just depends on how it looks. So far it's keeping (from what I can see) the inside fairly rust free. I take it to various ski mountains and the road grime that I get on there is terrible.
     
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  14. Jul 26, 2019 at 10:31 AM
    #34
    Xbeaus

    Xbeaus Well-Known Member

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    I do the fluid film on the inside and outside. Every once in a while I take a wire brush and get under there and spot check everything. I paint over any spots with VHT Rust converter. Seems to do the best and is fairly inexpensive to do every once in a while. Since my pickup doesn't break down at all it gives me something to do lol
     
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  15. Jul 26, 2019 at 11:25 AM
    #35
    RysiuM

    RysiuM Well-Known Member

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    Late to the game, but that's what I found so far in my 2 years experience:
    1. Pressure washer (especially soap and hot water) will remove fluid film from frame. I do it after the end of winter to clean the frame from the all the dirt that was stuck to the frame (fluid film is sticky on the surface) and wash out any trace of winter salt from the truck.
    2. I use "drain cleaning wand" to flush the dirt from the inside of the frame. It is cold water and tap pressure so most of the last year fluid film probably stays in. I just want to clean any dust or mud that might be accumulated inside boxed frame after the winter.
    Here is how the pressure washed frame looks like (hot water and soap at self car wash). You see most of the last year fluid film got washed out

    upload_2019-7-26_11-7-3.jpg

    After the frame is dried I apply generous dose of fluid film outside and inside boxed frame. I hit also some suspension parts, inside chrome bumpers and any mounting bolts and nuts. Basically any metal exposed to the environment. That how the fresh fluid film looks like (I have to admit I overdid it, and the first time I hit 50mph after applying FF I saw the cloud of mist fluid film (sorry for the guy driving behind me - his windshield wipers were not able to clean the mess)

    upload_2019-7-26_11-12-12.jpg


    Four months later all over-application was gone, some dist collected to the surface and the frame looked like that.

    upload_2019-7-26_11-14-29.jpg


    Another four months passed, and nothing really changed

    upload_2019-7-26_11-16-58.jpg


    And finally after 12 months (just before washing the frame after the winter again):

    upload_2019-7-26_11-21-36.jpg


    The last picture is taken after I returned from a hot water + soap pressure washing

    upload_2019-7-26_11-22-51.jpg


    An that cycle continues. I have not seen even a spec of the new surface rust (besides the one that I brought from California).

    I am 100% sold on fluid film. First year I did using spray cans, but the next year I bought a gun, as the fluid film by gallon is half of the price spry cans.
     
  16. Jul 26, 2019 at 1:08 PM
    #36
    Gyrkin

    Gyrkin [OP] Well-Known Member

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    From what I have read it doesn't like UV light, so any surfaces exposed to the sun need to have a top coat of paint. Also read that proper surface prep is key.

    This is exactly what I did. I spent almost three hours prepping the frame. Hot pressure wash, spent a lot of time flushing the inside of the frame on a slope. Degreased and used their metal prep. It will be interesting to see how it holds up.
     
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  17. Jul 26, 2019 at 1:12 PM
    #37
    Thebubble

    Thebubble Well-Known Member

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    Don't do it. This stuff is porous and when moisture get in - it's like a lightly damp sponge. You're best bet is to make an extension and blob the coating in the frame ( Ghetto way ) but unless you got rust, probably best to use grease since it will inhibit the formation of any oxidation.


    If you really want this done right, and be very expensive. Take the frame and get it chemically stripped, media blasted, zinc rich powder coated, and then top coated with a polyester/polyurethane powder coat....
     
  18. Jul 27, 2019 at 7:37 AM
    #38
    CS_AR

    CS_AR Well-Known Member

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  19. Jul 27, 2019 at 10:23 AM
    #39
    Gyrkin

    Gyrkin [OP] Well-Known Member

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    Yea, I watched that. He didn't prep the metal for POR-15 at all, and it's not even designed to be used on new metal. Totally inappropriate use of the product.
     
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  20. Jul 27, 2019 at 10:50 AM
    #40
    CS_AR

    CS_AR Well-Known Member

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    Agree.
     

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